Feature checklists rarely decide anything. What decides it is the pricing metric, who has to write the tests, and which limitation you can live with.
Entry price
From $26 per month (Team plan, indicative)
Free tierFrom $40 per month (indicative, Team plan by check runs)
Free tierWhat drives the bill
The metric that actually scales your invoice.
Event-volume pricing. A noisy application can consume the quota quickly, so filtering matters.
Priced by check runs; browser checks cost more than API checks, and frequency multiplies the bill.
Free tier
Free developer plan with a monthly error and replay allowance.
Free plan with a monthly check-run allowance covering a small site.
Open source
BSL / FSL
Self-hostable
No-code authoring
Languages
Platforms
Fits teams
Adoption
Category standard
Functional Software (Sentry) · since 2012
Widely used
Checkly · since 2018
Strengths
Limitations
Best for
Essentially every engineering team — error tracking is the highest-value monitoring you can add first.
Engineering teams already using Playwright who want production journeys monitored.
All of these integrate with: Slack, PagerDuty, Vercel.
Pricing last reviewed August 2026 and is indicative only — confirm on each vendor’s own page.